Schapira, P. Conditions de positivite dans une variété symplectique complexe. Applications à l’étude de l’hypoellipticite analytique. (French) Zbl 0417.35019 Journ. Équ. Dériv. Partielles, Saint-Cast 1979, Exp. No. 5, 6 p. (1979). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 35B65 Smoothness and regularity of solutions to PDEs 58J40 Pseudodifferential and Fourier integral operators on manifolds 58J47 Propagation of singularities; initial value problems on manifolds 65H10 Numerical computation of solutions to systems of equations Keywords:microfunction; micro-differential operators; hypoellipticity; Lewy- Mizohata operator; principal symbol Citations:Zbl 0401.00008 PDF BibTeX XML Full Text: Numdam EuDML OpenURL